Dependence of Luminescence characteristics of irradiated quartz with the thermal treatment and consequences for TL Dating

  • Roque C
  • Guibert P
  • Duttine M
 et al. 
  • 20


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


The dependence of luminescence properties of archaeological quartz pebbles with their thermal history is investigated and consequences for TL-dating are examined; the archaeological samples studied were collected from Solutrean layers at Laugerie Haute West rock shelter (Dordogne, France). This study is supported by a simulation experiment carried out on a natural quartz, using a combined approach by Cathodoluminescence (CL), Ther- moluminescence (TL) and Electron Paramagnetic Resonance (EPR) techniques. The quartz grains used were given a high beta dose, then independent aliquots were annealed in air at a temperature varying from 300°C to 900°C. It has been observed that the TL growth with dose, after annealing and re-irradiation, evolved from a linear behaviour to a marked supralinear one according to annealing temperature linked respectively with a partial or a total thermal drainage of charges in deep traps. Consequently, during the TL-dating pro- cess of materials anciently heated at low temperature in the past (between 300°C and 500°C approximately), a special care has to be taken by adopting an annealing treatment that ap- proaches the filling state of trapped charges that the samples had after the archaeological zeroing. This necessary new requirement strengthens accuracy and reliability of TL-dates obtained at Laugerie Haute. 1. INTRODUCTION Recent experiments by our group (Roque, 2001; Roque et al., 2004) showed that TL properties of archaeo- logical ceramics are dependent on the thermal treatment applied and particularly on the ancient firing conditions. Consequently, for dating purposes, the thermal history of the material being dated is to be addressed to define a more reliable equivalent dose (ED) measurement proto- col. Recent developments led us to propose a refinement of the TL-dating procedure and data exploitation usually implemented (see for example Aitken, 1985; Guibert et al., 1996): additive dose technique followed by regen- eration experiments on previously annealed material. The main novel contribution consists in adding, for any sample, a specific study by luminescence techniques the aim of which is to determine the more suitable annealing treat- ment necessarily done prior to the regeneration experi- 1 ments. Wh

Author-supplied keywords


Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

There are no full text links


  • Celine Roque

  • Pierre Guibert

  • Mathieu Duttine

  • Emmanuel Vartanian

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free